[lttng-dev] [PATCH babeltrace 4/4] Cleanup: test_bitfield: pass source integers as parameters
Mathieu Desnoyers
mathieu.desnoyers at efficios.com
Wed May 15 17:46:53 EDT 2019
It is a good practice to pass arguments as parameters rather
than through global variables.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers at efficios.com>
Change-Id: I0d7cc94b1d492ca53ad29b1d39831ee6288b2672
---
tests/lib/test_bitfield.c | 85 +++++++++++++++++------------------------------
1 file changed, 30 insertions(+), 55 deletions(-)
diff --git a/tests/lib/test_bitfield.c b/tests/lib/test_bitfield.c
index 59bf89fd..63168fcd 100644
--- a/tests/lib/test_bitfield.c
+++ b/tests/lib/test_bitfield.c
@@ -51,9 +51,6 @@ void fct(void)
#define DIAG_FMT_STR "Failed reading value written \"%s\"-wise, with start=%i" \
" and length=%i. Read %llX"
-unsigned int srcrand_ui;
-unsigned long long srcrand_ull;
-
/*
* fls: returns the position of the most significant bit.
* Returns 0 if no bit is set, else returns the position of the most
@@ -202,9 +199,9 @@ do { \
(val) != (ref); \
})
-void run_test_unsigned_write(void)
+void run_test_unsigned_write(unsigned int src_ui, unsigned long long src_ull)
{
- unsigned int src_ui, nrbits_ui, nrbits_ull;
+ unsigned int nrbits_ui, nrbits_ull;
union {
unsigned char c[TEST_LEN];
unsigned short s[TEST_LEN/sizeof(unsigned short)];
@@ -212,10 +209,9 @@ void run_test_unsigned_write(void)
unsigned long l[TEST_LEN/sizeof(unsigned long)];
unsigned long long ll[TEST_LEN/sizeof(unsigned long long)];
} target;
- unsigned long long src_ull, readval;
+ unsigned long long readval;
unsigned int s, l;
- src_ui = srcrand_ui;
nrbits_ui = fls_u32(src_ui);
/* Write from unsigned integer src input. */
@@ -264,7 +260,6 @@ void run_test_unsigned_write(void)
}
pass(UNSIGNED_INT_WRITE_TEST_DESC_FMT_STR, src_ui);
- src_ull = srcrand_ull;
nrbits_ull = fls_u64(src_ull);
/* Write from unsigned long long src input. */
@@ -314,9 +309,9 @@ void run_test_unsigned_write(void)
pass(UNSIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR, src_ull);
}
-void run_test_unsigned_read(void)
+void run_test_unsigned_read(unsigned int src_ui, unsigned long long src_ull)
{
- unsigned int src_ui, nrbits_ui, nrbits_ull, readval_ui;
+ unsigned int nrbits_ui, nrbits_ull, readval_ui;
union {
unsigned char c[TEST_LEN];
unsigned short s[TEST_LEN/sizeof(unsigned short)];
@@ -324,10 +319,9 @@ void run_test_unsigned_read(void)
unsigned long l[TEST_LEN/sizeof(unsigned long)];
unsigned long long ll[TEST_LEN/sizeof(unsigned long long)];
} target;
- unsigned long long src_ull, readval_ull;
+ unsigned long long readval_ull;
unsigned int s, l;
- src_ui = srcrand_ui;
nrbits_ui = fls_u32(src_ui);
/* Read to unsigned integer readval output. */
@@ -376,7 +370,6 @@ void run_test_unsigned_read(void)
}
pass(UNSIGNED_INT_READ_TEST_DESC_FMT_STR, src_ui);
- src_ull = srcrand_ull;
nrbits_ull = fls_u64(src_ull);
/* Read to unsigned long long readval output. */
@@ -426,15 +419,15 @@ void run_test_unsigned_read(void)
pass(UNSIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR, src_ull);
}
-void run_test_unsigned(void)
+void run_test_unsigned(unsigned int src_ui, unsigned long long src_ull)
{
- run_test_unsigned_write();
- run_test_unsigned_read();
+ run_test_unsigned_write(src_ui, src_ull);
+ run_test_unsigned_read(src_ui, src_ull);
}
-void run_test_signed_write(void)
+void run_test_signed_write(int src_i, long long src_ll)
{
- int src_i, nrbits_i, nrbits_ll;
+ int nrbits_i, nrbits_ll;
union {
signed char c[TEST_LEN];
short s[TEST_LEN/sizeof(short)];
@@ -442,10 +435,9 @@ void run_test_signed_write(void)
long l[TEST_LEN/sizeof(long)];
long long ll[TEST_LEN/sizeof(long long)];
} target;
- long long src_ll, readval;
+ long long readval;
unsigned int s, l;
- src_i = srcrand_ui;
if (src_i & 0x80000000U)
nrbits_i = fls_u32(~src_i) + 1; /* Find least significant bit conveying sign */
else
@@ -497,7 +489,6 @@ void run_test_signed_write(void)
}
pass(SIGNED_INT_WRITE_TEST_DESC_FMT_STR, src_i);
- src_ll = srcrand_ull;
if (src_ll & 0x8000000000000000ULL)
nrbits_ll = fls_u64(~src_ll) + 1; /* Find least significant bit conveying sign */
else
@@ -550,9 +541,9 @@ void run_test_signed_write(void)
pass(SIGNED_LONG_LONG_WRITE_TEST_DESC_FMT_STR, src_ll);
}
-void run_test_signed_read(void)
+void run_test_signed_read(int src_i, long long src_ll)
{
- int src_i, nrbits_i, nrbits_ll, readval_i;
+ int nrbits_i, nrbits_ll, readval_i;
union {
unsigned char c[TEST_LEN];
unsigned short s[TEST_LEN/sizeof(unsigned short)];
@@ -560,10 +551,9 @@ void run_test_signed_read(void)
unsigned long l[TEST_LEN/sizeof(unsigned long)];
unsigned long long ll[TEST_LEN/sizeof(unsigned long long)];
} target;
- long long src_ll, readval_ll;
+ long long readval_ll;
unsigned int s, l;
- src_i = srcrand_ui;
if (src_i & 0x80000000U)
nrbits_i = fls_u32(~src_i) + 1; /* Find least significant bit conveying sign */
else
@@ -615,7 +605,6 @@ void run_test_signed_read(void)
}
pass(SIGNED_INT_READ_TEST_DESC_FMT_STR, src_i);
- src_ll = srcrand_ull;
if (src_ll & 0x8000000000000000ULL)
nrbits_ll = fls_u64(~src_ll) + 1; /* Find least significant bit conveying sign */
else
@@ -668,48 +657,34 @@ void run_test_signed_read(void)
pass(SIGNED_LONG_LONG_READ_TEST_DESC_FMT_STR, src_ll);
}
-void run_test_signed(void)
+void run_test_signed(int src_i, long long src_ll)
{
- run_test_signed_write();
- run_test_signed_read();
+ run_test_signed_write(src_i, src_ll);
+ run_test_signed_read(src_i, src_ll);
}
void run_test(void)
{
int i;
+
plan_tests(NR_TESTS * 8 + 24);
srand(time(NULL));
- srcrand_ui = 0;
- srcrand_ull = 0;
- run_test_unsigned();
- srcrand_ui = 0;
- srcrand_ull = 0;
- run_test_signed();
-
- srcrand_ui = 1;
- srcrand_ull = 1;
- run_test_unsigned();
-
- srcrand_ui = ~0U;
- srcrand_ull = ~0ULL;
- run_test_unsigned();
-
- srcrand_ui = -1U;
- srcrand_ull = -1ULL;
- run_test_signed();
-
- srcrand_ui = 0x80000000U;
- srcrand_ull = 0x8000000000000000ULL;
- run_test_signed();
+ run_test_unsigned(0, 0);
+ run_test_signed(0, 0);
+ run_test_unsigned(1, 1);
+ run_test_unsigned(~0U, ~0ULL);
+ run_test_signed(-1U, -1ULL);
+ run_test_signed(0x80000000U, 0x8000000000000000ULL);
for (i = 0; i < NR_TESTS; i++) {
- srcrand_ui = rand();
- srcrand_ull = ((unsigned long long) (unsigned int) rand() << 32) |
+ unsigned int src_ui = rand();
+ unsigned long long src_ull = ((unsigned long long) (unsigned int) rand() << 32) |
(unsigned long long) (unsigned int) rand();
- run_test_unsigned();
- run_test_signed();
+
+ run_test_unsigned(src_ui, src_ull);
+ run_test_signed((int) src_ui, (long long) src_ull);
}
}
--
2.11.0
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